The sea was sapphire coloured, and the sky
Burned like a heated opal through the air;
We hoisted sail; the wind was blowing fair
For the blue lands that to the eastward lie.
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This is in the sonnet form ABBA-ACCA-DEFFED. Its a pretty good poem I think but not the best I've ever seen. The imagery is nice (sapphire/opal/red sun upon the sea) . I like the fact that the poet uses sounds in the sestet at the end. All in all though it really is just about the voyage nothing more which leave it a little flat I think.
it was 1877 when Oscar Wilde visited Greece, with a group of students (prof. Mahaffy's students)